The term for the onset of a woman's monthly menstrual flow is menses. The term for the first period in a girl is menarche.
Hormones are responsible for the onset of menses. When the body produces enough hormones, the menstrual cycle begins.
Menses will begin when the body is ready for it to happen. Menstruation begins on a certain day in a 28 day cycle when it is normal. The initial onset of menses happens when a young girl is developing and going through puberty.
Onset of menstruation which happens during puberty is termed menarche.
The medical term menopause refers to the permanent point at which menses ceases due to ovarian failure. The medical term amenorrhea refers to the absence or abnormal cessation of menses (when menopause has not yet occurred.)
the answer is 'onset'
Menorrhagia is the medical term meaning bursting forth of the menses. A more traditional definition would be excessive menstrual bleeding.
girls start about the age of 10 and boys start an 11 12 13 just depends Menstruation and puberty are inextricably links in females. The onset of the menses is also the onset of puberty.
Menarche
Onset
Menses is a medical term for the meaning of menstrual period that occurs in young females who are starting the process of puberty. This will occur monthly until the young female reaches the appropriate age for menopause.
The term menarche describes onset of menstruation. This is usually charachterisic of age 12 or 13.